Gold (Au) is an economically important metal. Its determination is a challenging and crucial task due to its presence in low concentration and heterogeneous distribution in gold-bearing minerals. The suitability and performance of laser-induced breakdown spectroscopy (LIBS) to identify base and precious metals, especially gold, in a boulangerite sample was evaluated. X-ray diffractometer phase analysis was carried out to determine constituent phases, revealing the presence of boulangerite, tridymite and galena. Analysis of the optical emission spectra obtained on the boulangerite surface using a Q-switched Nd:YAG laser at a fundamental harmonic (1064 nm) in the 200–720 nm spectral range revealed the presence of Pb, Sb, S, Au, Cu, Ca, Fe, Mn, Zn, Si, Mg, Al, Na, Ni and Li. Most of the emission lines for the major elements constituting boulangerite (Pb, Sb and S) were observed in the shorter wavelength region. The resonance line of Au appearing at 242.79 nm and corresponding to th...

中文翻译：

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激光诱导击穿光谱和电感耦合等离子体发射光谱法测定铅锑锑矿硼锌矿中的贱金属和金

金（Au）是一种经济上重要的金属。由于其含量低且在含金矿物中分布不均，因此确定它是一项艰巨而关键的任务。评估了激光诱导击穿光谱法（LIBS）识别蓝宝石样品中贱金属和贵金属（尤其是金）的适用性和性能。X射线衍射仪进行了相分析，以确定组成相，揭示了勃艮第石，绿闪石和方铅矿的存在。使用调Q的Nd：YAG激光器在200-720 nm光谱范围内的基波谐波（1064 nm）对蓝藻石表面获得的光发射光谱进行分析，发现存在Pb，Sb，S，Au，Cu，钙，铁，锰，锌，硅，镁，铝，钠，镍和锂。在较短的波长范围内观察到了构成蓝藻土的主要元素（Pb，Sb和S）的大多数发射线。Au的共振线出现在242.79 nm处并对应于...